HEIC decoding on this site uses libheif 1.23.5 (LGPL-3.0), built for the browser as libheif-js 1.23.5.
libheif.js and libheif.wasm are served unchanged from this folder and loaded as separate files,
so the library can be swapped for another build of the same names without changing the rest of the page.
Source code of these exact versions:
  libheif 1.23.5: https://github.com/strukturag/libheif/tree/v1.23.5
  libheif-js 1.23.5: https://github.com/catdad-experiments/libheif-js/tree/1.23.5
  package: https://registry.npmjs.org/libheif-js/-/libheif-js-1.23.5.tgz
The full license text is in LICENSE-LGPL-3.0.txt.